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Feature association-based three-dimensional process model change and maintenance method

A process model and feature association technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as difficult data maintenance of 3D machining process models, and achieve improved diversity, small scale, and convenient management Effect

Active Publication Date: 2018-11-13
XIAN TECH UNIV
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Problems solved by technology

[0005] The present invention provides a method for changing and maintaining a 3D process model based on feature association, the purpose of which is to overcome the difficulty of data maintenance in the process of changing the 3D machining process model improve the flexibility of 3D process model changes and the reliability of change results

Method used

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  • Feature association-based three-dimensional process model change and maintenance method
  • Feature association-based three-dimensional process model change and maintenance method
  • Feature association-based three-dimensional process model change and maintenance method

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Embodiment

[0043] Embodiment: This paper uses figure 1 The machining process of the part shown is taken as an example to verify the validity of the above-mentioned machining feature change method. The three-dimensional machining process model of the part is as follows: Figure 7 shown.

[0044] The technical solution provided by the invention is: by establishing a design structure matrix among each processing feature in the process route, the possible processing feature propagation path is analyzed. With the path obtained from the analysis as the core, information such as the processing features that may be affected and the process model to which the processing features belong is stored in a structured manner. Combined with the process model information of each process in the process route, a process model change and maintenance algorithm for adding, deleting and modifying processing features is proposed. It specifically includes the following steps:

[0045] (1) Analyze the process ...

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Abstract

The invention relates to a three-dimensional process model change and maintenance method, in particular to a feature association-based three-dimensional process model change and maintenance method. The method comprises the following steps of: establishing a design structure matrix among processing features in a process line and analyzing possible processing feature propagation paths; structurallystoring information such as possibly influenced processing features and process models to which the processing features belong by taking the analyzed paths as a core; putting forward a process model change and maintenance algorithm for adding, deleting and modifying the processing features by combining process model information of each process in the process line; and finally explaining the feasibility and reasonability of the three-dimensional process model change and maintenance method via living examples. The method aims at improving the flexibility of three-dimensional process model changeand the reliability of change results.

Description

technical field [0001] The invention relates to a method for changing and maintaining a three-dimensional process model, in particular to a method for changing and maintaining a three-dimensional process model based on feature association. Background technique [0002] Process model change propagation means that after a process model is modified, the change of the process model will be propagated to subsequent process models. The process model is mainly composed of processing features and process labeling information, and the basis of process labeling is processing features. Therefore, the essence of process model change is the change of processing features. The propagation of the process model change is manifested as the modification of the processing feature in the subsequent process model and the change of the related processing features dependent on the processing feature after the processing feature is modified. With the help of the basic idea of ​​the feature associa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 乔虎何俊吴庆云徐昭晖师治全
Owner XIAN TECH UNIV
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